marimo-notebook

## トリガーワード 「marimoノートブック」「インタラクティブノートブック」「Pythonノートブック」「marimo」 # Notes for marimo Notebooks ## Running Marimo Notebooks ```bash # Run as script (non-interactive, for testing) uv run <notebook.py> # Run interactively in browser uv run marimo run <notebook.py> # Edit interactively uv run marimo edit <notebook.py> ``` ## Script Mode Detection Use `mo.app_meta().mode == "script"` to detect CLI vs interactive: ```python @app.cell def _(mo): is_script_mode = mo.app_meta().mode == "script" return (is_script_mode,) ``` ## Key Principle: Keep It Simple **Show all UI elements always.** Only change the data source in script mode. - Sliders, buttons, widgets should always be created and displayed - In script mode, just use synthetic/default data instead of waiting for user input - Don't wrap everything in `if not is_script_mode` conditionals - Don't use try/except for normal control flow ### Good Pattern ```python # Always show the widget @app.cell def _(ScatterWidget, mo): scatter_widget = mo.ui.anywidget(ScatterWidget()) scatter_widget return (scatter_widget,) # Only change data source based on mode @app.cell def _(is_script_mode, make_moons, scatter_widget, np, torch): if is_script_mode: # Use synthetic data for testing X, y = make_moons(n_samples=200, noise=0.2) X_data = torch.tensor(X, dtype=torch.float32) y_data = torch.tensor(y) data_error = None else: # Use widget data in interactive mode ...